220277680 has 120 divisors (see below), whose sum is σ = 600666912. Its totient is φ = 73586688.

The previous prime is 220277669. The next prime is 220277731. The reversal of 220277680 is 86772022.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1949304 + ... + 1949416.

Almost surely, 2^220277680 is an apocalyptic number.

220277680 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220277680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (300333456).

220277680 is an abundant number, since it is smaller than the sum of its proper divisors (380389232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

220277680 is a wasteful number, since it uses less digits than its factorization.

220277680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251 (or 186 counting only the distinct ones).

The product of its (nonzero) digits is 18816, while the sum is 34.

The square root of 220277680 is about 14841.7546132524. The cubic root of 220277680 is about 603.9349519879.

The spelling of 220277680 in words is "two hundred twenty million, two hundred seventy-seven thousand, six hundred eighty".